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All Floor Crossings
Every documented case of a Canadian MP, MPP, MLA, MNA, or MHA switching parties — federal and provincial, 1867 to present. Filter by level, province, or category.
89 crossings
7B
7 BC United MLAs
2024BC United → BC ConservativeMLABritish Columbia
2/5
As BC United collapsed, seven more MLAs followed Banman to the BC Conservatives throughout 2024.
Party Collapsing
ES
Elenore Sturko
2024BC United → BC ConservativeMLABritish Columbia
4/5
Sturko, BC United MLA for Surrey-Cloverdale, crossed to the BC Conservatives as BC United suspended its campaign in 2024.
Party Collapsing
FT
Fred Tilley
2024Liberal → Progressive ConservativeMLANova Scotia
4/5
Tilley, Liberal MLA for Northside-Westmount, crossed to the PCs in 2024, joining the governing party.
Joined Government
IP
Ian Paton
2024BC United → BC ConservativeMLABritish Columbia
4/5
Paton, BC United MLA for Delta South, crossed to the BC Conservatives in 2024 as BC United suspended its campaign.
Party Collapsing
LD
Lorne Doerkson
2024BC United → BC ConservativeMLABritish Columbia
4/5
Doerkson, BC United MLA for Cariboo-Chilcotin, individually crossed to the BC Conservatives as BC United collapsed in 2024.
Party Collapsing
Peter Milobar
2024BC United → BC ConservativeMLABritish Columbia
4/5
Milobar, BC United MLA for Kamloops-Centre, crossed to the BC Conservatives as BC United collapsed in 2024.
Party Collapsing
Teresa Wat
2024BC United → BC ConservativeMLABritish Columbia
4/5
Wat, BC United MLA for Richmond North Centre, crossed to the BC Conservatives as BC United collapsed in 2024.
Party Collapsing
TH
Trevor Halford
2024BC United → BC ConservativeMLABritish Columbia
4/5
Halford, BC United MLA for Surrey-White Rock, crossed to the BC Conservatives as BC United suspended its campaign.
Party Collapsing
Bruce Banman
2023NotableBC United → BC ConservativeMLABritish Columbia
2/5
Banman was the first of many MLAs to leave BC United (formerly BC Liberals) for the surging BC Conservatives. BC United was losing support rapidly as the right consolidated arou…
Party Collapsing
Jenica Atwin
2021NotableGreen Party → LiberalMPNew Brunswick
2/5
Atwin left the Green Party during a period of internal chaos, partly over how leader Annamie Paul handled the Israel-Palestine debate. The Green Party was tearing itself apart.
Party in Crisis
Amanda Simard
2020NotableProg. Conservative → LiberalMPPOntario
1/5
Simard resigned from Doug Ford's Ontario PC caucus because the government cut funding for Franco-Ontarian services - including eliminating the French Language Commissioner. She …
Stood on Principle
7B
7 Bloc Québécois MPs (Québec debout crisis)
2018NotableBloc Québécois → Independent / Québec deboutMPQuebec
2/5
On February 28, 2018, seven of the Bloc Québécois's ten MPs left the party following leader Martine Ouellet's defeat in a leadership review referendum. The departing MPs — Miche…
Fought Their Leader
PL
Paul Lane
2014Progressive Conservative → LiberalMHANewfoundland
3/5
Lane, PC MHA for Mount Pearl South, crossed to the Liberals in 2014 ahead of the anticipated Liberal wave.
Switched Sides
CM
Christopher Mitchelmore and Dale Kirby
2013NotableNDP → LiberalMHANewfoundland
4/5
Mitchelmore and Kirby left the NL NDP caucus in protest against the leadership of Lorraine Michael. They briefly sat as "Independent NDP" before joining the Liberals.
Fought Their LeaderGot Cabinet
Tom Osborne
2012NotableProgressive Conservative → LiberalMHANewfoundland
5/5
Osborne, a long-serving PC MHA, left the PC caucus and joined the Liberals, citing dissatisfaction with the party's direction.
Changed BeliefsGot Cabinet
Bridget Pastoor
2011Alberta Liberal → Progressive ConservativeMLAAlberta
3/5
Pastoor, Alberta Liberal MLA for Lethbridge-East, left the Liberals and crossed to the PCs under new leader Alison Redford, who she felt represented a more progressive direction.
Joined Government
KC
Karen Casey
2011NotableProgressive Conservative → LiberalMLANova Scotia
5/5
Casey, PC MLA for Colchester North, crossed to the Liberals in 2011 after clashing with PC leader Jamie Baillie.
Fought Their LeaderGot Cabinet
Guy Boutilier
2010Progressive Conservative → WildroseMLAAlberta
3/5
Boutilier, Alberta PC MLA for Fort McMurray-Wood Buffalo, was ejected from the PC caucus in 2009 for publicly criticizing the government's response to the oilsands housing crisi…
Kicked Out
Heather Forsyth
2010NotableProgressive Conservative → Wildrose AllianceMLAAlberta
3/5
Forsyth, a long-serving PC MLA and former cabinet minister, crossed to the Wildrose Alliance with Rob Anderson over dissatisfaction with PC governance.
Stood on Principle
RA
Rob Anderson
2010NotableProgressive Conservative → Wildrose AllianceMLAAlberta
3/5
Anderson, PC MLA for Airdrie-Chestermere, crossed to the Wildrose Alliance along with Heather Forsyth, citing overspending, broken promises, and democratic reform.
Stood on Principle
ÉC
Éric Caire and Marc Picard
2009NotableADQ → IndependentMNAQuebec
4/5
Caire and Picard, Quebec ADQ MNAs, left the ADQ to sit as independents. They were among the founding members of the Coalition Avenir Québec when it formed in 2011.
Joined New PartyGot Cabinet
Bill Casey
2007NotableConservative → IndependentMPNova Scotia
3/5
William David "Bill" Casey, the Conservative MP for Cumberland—Colchester—Musquodoboit Valley in Nova Scotia, was expelled from the Conservative caucus on June 6, 2007, after vo…
Stood on Principle
Belinda Stronach
2005NotableConservative → LiberalMPOntario
5/5
In one of the most dramatic moments in Canadian parliamentary history, Stronach crossed the floor to join Paul Martin's Liberal cabinet. Her single vote helped save the minority…
Wanted PromotionGot Cabinet
Chuck Cadman
2004NotableConservative → IndependentMPBritish Columbia
2/5
Chuck Cadman, the Conservative MP for Surrey North and a well-known victims' rights advocate whose teenage son Jesse had been murdered in 1992, lost the Conservative Party nomin…
Kicked Out